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628 lines
20 KiB
C
628 lines
20 KiB
C
/**
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* MIT/X11 License
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* Modified (c) 2017 Qball Cow <qball@gmpclient.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <config.h>
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#include <glib.h>
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#include <widgets/widget.h>
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#include <widgets/textbox.h>
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#include <widgets/listview.h>
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#include <widgets/scrollbar.h>
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#include "settings.h"
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#include "theme.h"
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#define DEFAULT_SPACING 2
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struct _listview
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{
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widget widget;
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// RChanged
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// Text needs to be repainted.
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unsigned int rchanged;
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// Administration
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unsigned int cur_page;
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unsigned int last_offset;
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unsigned int selected;
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unsigned int element_height;
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unsigned int element_width;
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unsigned int max_rows;
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unsigned int max_elements;
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//
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unsigned int cur_columns;
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unsigned int req_elements;
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unsigned int cur_elements;
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Distance spacing;
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unsigned int menu_lines;
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unsigned int max_displayed_lines;
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unsigned int menu_columns;
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unsigned int fixed_num_lines;
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unsigned int dynamic;
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unsigned int eh;
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unsigned int reverse;
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gboolean cycle;
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gboolean multi_select;
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ScrollType scroll_type;
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textbox **boxes;
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scrollbar *scrollbar;
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listview_update_callback callback;
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void *udata;
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gboolean scrollbar_scroll;
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xcb_timestamp_t last_click;
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listview_mouse_activated_cb mouse_activated;
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void *mouse_activated_data;
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char *listview_name;
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};
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static int listview_get_desired_height ( widget *wid );
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static void listview_free ( widget *wid )
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{
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listview *lv = (listview *) wid;
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for ( unsigned int i = 0; i < lv->cur_elements; i++ ) {
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widget_free ( WIDGET ( lv->boxes [i] ) );
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}
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g_free ( lv->boxes );
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g_free ( lv->listview_name );
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widget_free ( WIDGET ( lv->scrollbar ) );
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g_free ( lv );
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}
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static unsigned int scroll_per_page ( listview * lv )
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{
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int offset = 0;
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// selected row is always visible.
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// If selected is visible do not scroll.
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if ( ( ( lv->selected - ( lv->last_offset ) ) < ( lv->max_elements ) ) && ( lv->selected >= ( lv->last_offset ) ) ) {
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offset = lv->last_offset;
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}
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else{
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// Do paginating
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unsigned int page = ( lv->max_elements > 0 ) ? ( lv->selected / lv->max_elements ) : 0;
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offset = page * lv->max_elements;
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if ( page != lv->cur_page ) {
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lv->cur_page = page;
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lv->rchanged = TRUE;
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}
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// Set the position
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//scrollbar_set_handle ( lv->scrollbar, page * lv->max_elements );
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}
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return offset;
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}
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static unsigned int scroll_continious ( listview *lv )
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{
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unsigned int middle = ( lv->max_rows - ( ( lv->max_rows & 1 ) == 0 ) ) / 2;
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unsigned int offset = 0;
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if ( lv->selected > middle ) {
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if ( lv->selected < ( lv->req_elements - ( lv->max_rows - middle ) ) ) {
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offset = lv->selected - middle;
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}
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// Don't go below zero.
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else if ( lv->req_elements > lv->max_rows ) {
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offset = lv->req_elements - lv->max_rows;
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}
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}
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if ( offset != lv->cur_page ) {
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//scrollbar_set_handle ( lv->scrollbar, offset );
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lv->cur_page = offset;
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lv->rchanged = TRUE;
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}
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return offset;
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}
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static void update_element ( listview *lv, unsigned int tb, unsigned int index, gboolean full )
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{
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// Select drawing mode
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TextBoxFontType type = ( index & 1 ) == 0 ? NORMAL : ALT;
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type = ( index ) == lv->selected ? HIGHLIGHT : type;
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if ( lv->callback ) {
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lv->callback ( lv->boxes[tb], index, lv->udata, type, full );
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}
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}
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static void listview_draw ( widget *wid, cairo_t *draw )
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{
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unsigned int offset = 0;
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listview *lv = (listview *) wid;
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if ( lv->scroll_type == LISTVIEW_SCROLL_CONTINIOUS ) {
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offset = scroll_continious ( lv );
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}
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else {
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offset = scroll_per_page ( lv );
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}
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// Set these all together to make sure they update consistently.
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scrollbar_set_max_value ( lv->scrollbar, lv->req_elements );
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scrollbar_set_handle_length ( lv->scrollbar, lv->cur_columns * lv->max_rows );
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if ( lv->reverse ) {
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scrollbar_set_handle ( lv->scrollbar, lv->req_elements - lv->selected - 1 );
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}
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else {
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scrollbar_set_handle ( lv->scrollbar, lv->selected );
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}
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lv->last_offset = offset;
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int spacing_vert = distance_get_pixel ( lv->spacing, ORIENTATION_VERTICAL );
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int spacing_hori = distance_get_pixel ( lv->spacing, ORIENTATION_HORIZONTAL );
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int left_offset = widget_padding_get_left ( wid );
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int top_offset = widget_padding_get_top ( wid );
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if ( lv->scrollbar->widget.index == 0 ) {
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left_offset += spacing_hori + lv->scrollbar->widget.w;
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}
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if ( lv->cur_elements > 0 && lv->max_rows > 0 ) {
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// Set new x/y possition.
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unsigned int max = MIN ( lv->cur_elements, lv->req_elements - offset );
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if ( lv->rchanged ) {
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unsigned int width = lv->widget.w - spacing_hori * ( lv->cur_columns - 1 );
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width -= widget_padding_get_padding_width ( wid );
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if ( widget_enabled ( WIDGET ( lv->scrollbar ) ) ) {
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width -= spacing_hori;
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width -= widget_get_width ( WIDGET ( lv->scrollbar ) );
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}
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unsigned int element_width = ( width ) / lv->cur_columns;
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for ( unsigned int i = 0; i < max; i++ ) {
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unsigned int ex = left_offset + ( ( i ) / lv->max_rows ) * ( element_width + spacing_hori );
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if ( lv->reverse ) {
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unsigned int ey = wid->h - ( widget_padding_get_bottom ( wid ) + ( ( i ) % lv->max_rows ) * ( lv->element_height + spacing_vert ) ) - lv->element_height;
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textbox_moveresize ( lv->boxes[i], ex, ey, element_width, lv->element_height );
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}
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else {
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unsigned int ey = top_offset + ( ( i ) % lv->max_rows ) * ( lv->element_height + spacing_vert );
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textbox_moveresize ( lv->boxes[i], ex, ey, element_width, lv->element_height );
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}
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update_element ( lv, i, i + offset, TRUE );
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widget_draw ( WIDGET ( lv->boxes[i] ), draw );
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}
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lv->rchanged = FALSE;
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}
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else {
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for ( unsigned int i = 0; i < max; i++ ) {
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update_element ( lv, i, i + offset, FALSE );
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widget_draw ( WIDGET ( lv->boxes[i] ), draw );
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}
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}
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}
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widget_draw ( WIDGET ( lv->scrollbar ), draw );
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}
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static void listview_recompute_elements ( listview *lv )
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{
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unsigned int newne = 0;
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if ( lv->max_rows == 0 ) {
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return;
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}
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if ( lv->req_elements < lv->max_elements ) {
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newne = lv->req_elements;
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lv->cur_columns = ( lv->req_elements + ( lv->max_rows - 1 ) ) / lv->max_rows;
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}
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else {
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newne = lv->max_elements;
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lv->cur_columns = lv->menu_columns;
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}
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for ( unsigned int i = newne; i < lv->cur_elements; i++ ) {
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widget_free ( WIDGET ( lv->boxes[i] ) );
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}
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lv->boxes = g_realloc ( lv->boxes, newne * sizeof ( textbox* ) );
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if ( newne > 0 ) {
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char *name = g_strjoin ( ".", lv->listview_name, "element", NULL );
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for ( unsigned int i = lv->cur_elements; i < newne; i++ ) {
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TextboxFlags flags = ( lv->multi_select ) ? TB_INDICATOR : 0;
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lv->boxes[i] = textbox_create ( name, flags, NORMAL, "" );
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}
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g_free ( name );
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}
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lv->rchanged = TRUE;
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lv->cur_elements = newne;
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}
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void listview_set_num_elements ( listview *lv, unsigned int rows )
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{
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lv->req_elements = rows;
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listview_set_selected ( lv, lv->selected );
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listview_recompute_elements ( lv );
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widget_queue_redraw ( WIDGET ( lv ) );
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}
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unsigned int listview_get_selected ( listview *lv )
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{
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if ( lv != NULL ) {
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return lv->selected;
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}
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return 0;
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}
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void listview_set_selected ( listview *lv, unsigned int selected )
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{
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if ( lv && lv->req_elements > 0 ) {
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lv->selected = MIN ( selected, lv->req_elements - 1 );
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widget_queue_redraw ( WIDGET ( lv ) );
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}
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}
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static void listview_resize ( widget *wid, short w, short h )
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{
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listview *lv = (listview *) wid;
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lv->widget.w = MAX ( 0, w );
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lv->widget.h = MAX ( 0, h );
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int height = lv->widget.h - widget_padding_get_padding_height ( WIDGET ( lv ) );
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int spacing_vert = distance_get_pixel ( lv->spacing, ORIENTATION_VERTICAL );
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lv->max_rows = ( spacing_vert + height ) / ( lv->element_height + spacing_vert );
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lv->max_elements = lv->max_rows * lv->menu_columns;
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if ( lv->scrollbar->widget.index == 0 ) {
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widget_move ( WIDGET ( lv->scrollbar ),
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widget_padding_get_left ( WIDGET ( lv ) ),
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widget_padding_get_top ( WIDGET ( lv ) ) );
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}
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else {
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widget_move ( WIDGET ( lv->scrollbar ),
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lv->widget.w - widget_padding_get_right ( WIDGET ( lv ) ) - widget_get_width ( WIDGET ( lv->scrollbar ) ),
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widget_padding_get_top ( WIDGET ( lv ) ) );
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}
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widget_resize ( WIDGET ( lv->scrollbar ), widget_get_width ( WIDGET ( lv->scrollbar ) ), height );
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listview_recompute_elements ( lv );
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widget_queue_redraw ( wid );
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}
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static gboolean listview_scrollbar_clicked ( widget *sb, xcb_button_press_event_t * xce, void *udata )
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{
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listview *lv = (listview *) udata;
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unsigned int sel = scrollbar_clicked ( (scrollbar *) sb, xce->event_y );
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listview_set_selected ( lv, sel );
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return TRUE;
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}
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static gboolean listview_clicked ( widget *wid, xcb_button_press_event_t *xce, G_GNUC_UNUSED void *udata )
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{
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listview *lv = (listview *) wid;
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lv->scrollbar_scroll = FALSE;
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if ( widget_enabled ( WIDGET ( lv->scrollbar ) ) && widget_intersect ( WIDGET ( lv->scrollbar ), xce->event_x, xce->event_y ) ) {
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// Forward to handler of scrollbar.
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xcb_button_press_event_t xce2 = *xce;
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xce->event_x -= widget_get_x_pos ( WIDGET ( lv->scrollbar ) );
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xce->event_y -= widget_get_y_pos ( WIDGET ( lv->scrollbar ) );
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lv->scrollbar_scroll = TRUE;
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return widget_clicked ( WIDGET ( lv->scrollbar ), &xce2 );
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}
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// Handle the boxes.
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unsigned int max = MIN ( lv->cur_elements, lv->req_elements - lv->last_offset );
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for ( unsigned int i = 0; i < max; i++ ) {
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widget *w = WIDGET ( lv->boxes[i] );
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if ( widget_intersect ( w, xce->event_x, xce->event_y ) ) {
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if ( ( lv->last_offset + i ) == lv->selected ) {
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if ( ( xce->time - lv->last_click ) < 200 ) {
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// Somehow signal we accepted item.
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lv->mouse_activated ( lv, xce, lv->mouse_activated_data );
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}
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}
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else {
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listview_set_selected ( lv, lv->last_offset + i );
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}
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lv->last_click = xce->time;
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return TRUE;
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}
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}
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return FALSE;
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}
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static gboolean listview_motion_notify ( widget *wid, xcb_motion_notify_event_t *xme )
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{
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listview *lv = (listview *) wid;
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if ( widget_enabled ( WIDGET ( lv->scrollbar ) ) && lv->scrollbar_scroll ) {
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xcb_motion_notify_event_t xle = *xme;
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xle.event_x -= wid->x;
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xle.event_y -= wid->y;
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widget_motion_notify ( WIDGET ( lv->scrollbar ), &xle );
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return TRUE;
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}
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return FALSE;
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}
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listview *listview_create ( const char *name, listview_update_callback cb, void *udata, unsigned int eh, gboolean reverse )
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{
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listview *lv = g_malloc0 ( sizeof ( listview ) );
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gchar *box = g_strjoin ( ".", name, "box", NULL );
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widget_init ( WIDGET ( lv ), box );
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g_free ( box );
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lv->listview_name = g_strdup ( name );
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lv->widget.free = listview_free;
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lv->widget.resize = listview_resize;
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lv->widget.draw = listview_draw;
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lv->widget.clicked = listview_clicked;
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lv->widget.motion_notify = listview_motion_notify;
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lv->widget.get_desired_height = listview_get_desired_height;
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lv->widget.enabled = TRUE;
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lv->eh = eh;
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char *n = g_strjoin ( ".", lv->listview_name, "scrollbar", NULL );
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lv->scrollbar = scrollbar_create ( n );
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// Default position on right.
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lv->scrollbar->widget.index = rofi_theme_get_integer_exact ( WIDGET ( lv->scrollbar ), "index", 1 );
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g_free ( n );
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widget_set_clicked_handler ( WIDGET ( lv->scrollbar ), listview_scrollbar_clicked, lv );
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lv->scrollbar->widget.parent = WIDGET ( lv );
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// Calculate height of an element.
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//
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char *tb_name = g_strjoin ( ".", lv->listview_name, "element", NULL );
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textbox *tb = textbox_create ( tb_name, 0, NORMAL, "" );
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lv->element_height = textbox_get_estimated_height ( tb, lv->eh );
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g_free ( tb_name );
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widget_free ( WIDGET ( tb ) );
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lv->callback = cb;
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lv->udata = udata;
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// Some settings.
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lv->spacing = rofi_theme_get_distance ( WIDGET ( lv ), "spacing", DEFAULT_SPACING );
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lv->menu_columns = rofi_theme_get_integer ( WIDGET ( lv ), "columns", config.menu_columns );
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lv->fixed_num_lines = rofi_theme_get_boolean ( WIDGET ( lv ), "fixed-height", config.fixed_num_lines );
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lv->dynamic = rofi_theme_get_boolean ( WIDGET ( lv ), "dynamic", TRUE );
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lv->reverse = rofi_theme_get_boolean ( WIDGET ( lv ), "reverse", reverse );
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listview_set_show_scrollbar ( lv, rofi_theme_get_boolean ( WIDGET ( lv ), "scrollbar", !config.hide_scrollbar ) );
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lv->cycle = rofi_theme_get_boolean ( WIDGET ( lv ), "cycle", config.cycle );
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return lv;
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}
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/**
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* Navigation commands.
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*/
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static void listview_nav_up_int ( listview *lv )
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{
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if ( lv == NULL ) {
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return;
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}
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if ( lv->req_elements == 0 || ( lv->selected == 0 && !lv->cycle ) ) {
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return;
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}
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if ( lv->selected == 0 ) {
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lv->selected = lv->req_elements;
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}
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lv->selected--;
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widget_queue_redraw ( WIDGET ( lv ) );
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}
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static void listview_nav_down_int ( listview *lv )
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{
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if ( lv == NULL ) {
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return;
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}
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if ( lv->req_elements == 0 || ( lv->selected == ( lv->req_elements - 1 ) && !lv->cycle ) ) {
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return;
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}
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lv->selected = lv->selected < lv->req_elements - 1 ? MIN ( lv->req_elements - 1, lv->selected + 1 ) : 0;
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widget_queue_redraw ( WIDGET ( lv ) );
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}
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void listview_nav_up ( listview *lv )
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{
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if ( lv->reverse ) {
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listview_nav_down_int ( lv );
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}
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else {
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listview_nav_up_int ( lv );
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}
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}
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void listview_nav_down ( listview *lv )
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{
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if ( lv->reverse ) {
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listview_nav_up_int ( lv );
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}
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else {
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listview_nav_down_int ( lv );
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}
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}
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void listview_nav_left ( listview *lv )
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{
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if ( lv == NULL ) {
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return;
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}
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if ( lv->selected >= lv->max_rows ) {
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lv->selected -= lv->max_rows;
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widget_queue_redraw ( WIDGET ( lv ) );
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}
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}
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void listview_nav_right ( listview *lv )
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{
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if ( lv == NULL ) {
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|
return;
|
|
}
|
|
if ( ( lv->selected + lv->max_rows ) < lv->req_elements ) {
|
|
lv->selected += lv->max_rows;
|
|
widget_queue_redraw ( WIDGET ( lv ) );
|
|
}
|
|
else if ( lv->selected < ( lv->req_elements - 1 ) ) {
|
|
// We do not want to move to last item, UNLESS the last column is only
|
|
// partially filled, then we still want to move column and select last entry.
|
|
// First check the column we are currently in.
|
|
int col = lv->selected / lv->max_rows;
|
|
// Check total number of columns.
|
|
int ncol = lv->req_elements / lv->max_rows;
|
|
// If there is an extra column, move.
|
|
if ( col != ncol ) {
|
|
lv->selected = lv->req_elements - 1;
|
|
widget_queue_redraw ( WIDGET ( lv ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
static void listview_nav_page_prev_int ( listview *lv )
|
|
{
|
|
if ( lv == NULL ) {
|
|
return;
|
|
}
|
|
if ( lv->selected < lv->max_elements ) {
|
|
lv->selected = 0;
|
|
}
|
|
else{
|
|
lv->selected -= ( lv->max_elements );
|
|
}
|
|
widget_queue_redraw ( WIDGET ( lv ) );
|
|
}
|
|
static void listview_nav_page_next_int ( listview *lv )
|
|
{
|
|
if ( lv == NULL ) {
|
|
return;
|
|
}
|
|
if ( lv->req_elements == 0 ) {
|
|
return;
|
|
}
|
|
lv->selected += ( lv->max_elements );
|
|
if ( lv->selected >= lv->req_elements ) {
|
|
lv->selected = lv->req_elements - 1;
|
|
}
|
|
widget_queue_redraw ( WIDGET ( lv ) );
|
|
}
|
|
|
|
void listview_nav_page_prev ( listview *lv )
|
|
{
|
|
if ( lv->reverse ) {
|
|
listview_nav_page_next_int ( lv );
|
|
}
|
|
else {
|
|
listview_nav_page_prev_int ( lv );
|
|
}
|
|
}
|
|
void listview_nav_page_next ( listview *lv )
|
|
{
|
|
if ( lv->reverse ) {
|
|
listview_nav_page_prev_int ( lv );
|
|
}
|
|
else {
|
|
listview_nav_page_next_int ( lv );
|
|
}
|
|
}
|
|
|
|
static int listview_get_desired_height ( widget *wid )
|
|
{
|
|
listview *lv = (listview *) wid;
|
|
if ( lv == NULL || lv->widget.enabled == FALSE ) {
|
|
return 0;
|
|
}
|
|
int spacing = distance_get_pixel ( lv->spacing, ORIENTATION_VERTICAL );
|
|
int h = lv->menu_lines;
|
|
if ( !( lv->fixed_num_lines ) ) {
|
|
if ( lv->dynamic ) {
|
|
h = MIN ( lv->menu_lines, lv->req_elements );
|
|
}
|
|
else {
|
|
h = MIN ( lv->menu_lines, lv->max_displayed_lines );
|
|
}
|
|
}
|
|
if ( h == 0 ) {
|
|
if ( lv->dynamic && !lv->fixed_num_lines ) {
|
|
// Hide widget fully.
|
|
return 0;
|
|
}
|
|
return widget_padding_get_padding_height ( WIDGET ( lv ) );
|
|
}
|
|
int height = widget_padding_get_padding_height ( WIDGET ( lv ) );
|
|
height += h * ( lv->element_height + spacing ) - spacing;
|
|
return height;
|
|
}
|
|
|
|
void listview_set_show_scrollbar ( listview *lv, gboolean enabled )
|
|
{
|
|
if ( lv ) {
|
|
if ( enabled ) {
|
|
widget_enable ( WIDGET ( lv->scrollbar ) );
|
|
}
|
|
else {
|
|
widget_disable ( WIDGET ( lv->scrollbar ) );
|
|
}
|
|
listview_recompute_elements ( lv );
|
|
}
|
|
}
|
|
|
|
void listview_set_scroll_type ( listview *lv, ScrollType type )
|
|
{
|
|
if ( lv ) {
|
|
lv->scroll_type = type;
|
|
}
|
|
}
|
|
|
|
void listview_set_mouse_activated_cb ( listview *lv, listview_mouse_activated_cb cb, void *udata )
|
|
{
|
|
if ( lv ) {
|
|
lv->mouse_activated = cb;
|
|
lv->mouse_activated_data = udata;
|
|
}
|
|
}
|
|
void listview_set_multi_select ( listview *lv, gboolean enable )
|
|
{
|
|
if ( lv ) {
|
|
lv->multi_select = enable;
|
|
}
|
|
}
|
|
void listview_set_num_lines ( listview *lv, unsigned int num_lines )
|
|
{
|
|
if ( lv ) {
|
|
lv->menu_lines = num_lines;
|
|
}
|
|
}
|
|
|
|
unsigned int listview_get_num_lines ( listview *lv )
|
|
{
|
|
if ( lv ) {
|
|
return lv->menu_lines;
|
|
}
|
|
return 0;
|
|
}
|
|
void listview_set_max_lines ( listview *lv, unsigned int max_lines )
|
|
{
|
|
if ( lv ) {
|
|
lv->max_displayed_lines = max_lines;
|
|
}
|
|
}
|
|
|
|
gboolean listview_get_fixed_num_lines ( listview *lv )
|
|
{
|
|
if ( lv ) {
|
|
return lv->fixed_num_lines;
|
|
}
|
|
return FALSE;
|
|
}
|
|
void listview_set_fixed_num_lines ( listview *lv )
|
|
{
|
|
if ( lv ) {
|
|
lv->fixed_num_lines = TRUE;
|
|
}
|
|
}
|